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alexdok [17]
3 years ago
5

Help, please! instructions in the picture:

Mathematics
2 answers:
Paraphin [41]3 years ago
7 0
4 hours is $50, 40 hours is $500, 160 hours is $2000, 200 hours is $2500.

i’m pretty sure this is right because she makes $12.5 an hour.
Gelneren [198K]3 years ago
3 0

Answer:

$ 500 ~40 horus

$ 2000 ~160hours

$ 2500 ~200hours

Step-by-step explanation:

Assume that the rate of earnings is constant, then one can manipulate the first ratio to get to the succeeding ratios. A ratio is a way of expressing one value compared to another when the two values have different units. In this case, the ratio is: (hours : earnings)

hours : earnings

4 : 50

First, one is asked to find how much is earned in (40) hours, since the rate is constant, all one has to do is multiply the hours by (10) to get to (40),

40 : 500

Next, one is asked to find how much is earned in (160) hours, now multiply the previous rate by (4), to get to 160,

160: 2000

Finally, one is asked to find out how much is earned in (200) hours, multiply the rate which gives one how much is earned in (40) hours by (5),

200 : 2500

You might be interested in
WIL GIVE BRAINLIEST<br> Focus (- 2, - 3) Directrix x = 6
aliina [53]

Answer:

Here's ya answer!

(

y

+

3

)

2

=

−

6

(

x

−

7

2

)

Sorry its upside down, but good luck on that test!

4 0
3 years ago
Which of the following equations have complex roots?
goldenfox [79]

9514 1404 393

Answer:

  B.  3x² +2 = 0

Step-by-step explanation:

The equation of A has a couple of real roots. We're pretty sure there are complex numbers that will satisfy this equation, but we don't know how to find them. (We suspect a typo, and that the equation is supposed to be 2x² +1 = 7x, which has only real roots.)

__

The equation of B can be rewritten as ...

  x² = -2/3

This will have complex roots.

__

The discriminants of both equations C and D are positive, so those have only real roots.

  2x² -5x -1   ⇒   d = (-5)² -4(2)(-1) = 33

  3x² -6x -1   ⇒   d = (-6)² -4(3)(-1) = 48

6 0
3 years ago
Put them in order from least to greatest:<br> 7.92 8.061 8.1 7.999 7.94 8.087
Ghella [55]

Answer:

7.92, 7.94, 7.999, 8.061, 8.1, 8.087

Step-by-step explanation:

There isn't exactly a step by step explanation.

7.92 is smallest because while all the ones with 7 in it have a 9 in the first digit, the second digit is the smallest out of those. you can work your way up from there

7 0
3 years ago
Mara and Taylor need to rent a car for 6 days. If the cost of the car is $105 for each day, which of the following expressions c
Nonamiya [84]
105+105+105+105+105=630
105*6=630

6 0
3 years ago
Read 2 more answers
I need help with this. Thank you so much!
katovenus [111]
Sorry I don't know but good luck!
8 0
3 years ago
Read 2 more answers
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